title: Discussion.
mesh_terms: D001021:Aortic Valve / Q000601:surgery*; D019917:Blood Vessel Prosthesis Implantation; D005260:Female; D006349:Heart Valve Diseases / Q000601:surgery*; D019918:Heart Valve Prosthesis Implantation; D006801:Humans; D008297:Male; D011651:Pulmonary Artery / Q000637:transplantation*; D011664:Pulmonary Valve / Q000637:transplantation*